Thesaurus
Synonyms and Antonyms of dumbfounding
causing a strong emotional reaction because of unexpectedness
unannounced, unanticipated, unexpected, unforeseen
awesome, awful, breathtaking, fabulous, heart-stopping, marvelous (or marvellous), miraculous, portentous, prodigious, staggering, stupendous, sublime, wonderful, wondrous
extraordinary, phenomenal, rare, sensational, spectacular
befuddling, bewildering, confounding, confusing, discomfiting, disconcerting, dismaying, flustering, muddling, nonplussing (also nonplusing), perplexing, upsetting
incomprehensible, inconceivable, incredible, unbelievable, unimaginable, unlikely, unthinkable
singular, uncommon, unique, unusual, unwonted
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